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Message-ID: <20241025223714.394533-6-peter.colberg@intel.com>
Date: Fri, 25 Oct 2024 18:37:00 -0400
From: Peter Colberg <peter.colberg@...el.com>
To: Wu Hao <hao.wu@...el.com>,
Tom Rix <trix@...hat.com>,
Moritz Fischer <mdf@...nel.org>,
Xu Yilun <yilun.xu@...el.com>,
linux-fpga@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Russ Weight <russ.weight@...ux.dev>,
Marco Pagani <marpagan@...hat.com>,
Matthew Gerlach <matthew.gerlach@...ux.intel.com>,
Basheer Ahmed Muddebihal <basheer.ahmed.muddebihal@...ux.intel.com>,
Peter Colberg <peter.colberg@...el.com>
Subject: [PATCH v4 05/19] fpga: dfl: pass feature platform data instead of device as argument
For functions which use the feature platform data, instead of invoking
dev_get_platdata() on the device, directly pass the data as an argument.
This patch is part of a refactoring of the internal DFL APIs to move
the feature device data into a new struct dfl_feature_dev_data which
lifetime is independent of the corresponding platform device.
Signed-off-by: Peter Colberg <peter.colberg@...el.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@...ux.intel.com>
Reviewed-by: Basheer Ahmed Muddebihal <basheer.ahmed.muddebihal@...ux.intel.com>
---
Changes since v3:
- Extend description to mention the reason for the refactoring.
Changes since v2:
- New patch extracted from monolithic v1 patch.
---
drivers/fpga/dfl-afu-error.c | 29 +++++++-------
drivers/fpga/dfl-afu-main.c | 76 +++++++++++++++++++-----------------
drivers/fpga/dfl-afu.h | 4 +-
drivers/fpga/dfl-fme-br.c | 26 ++++++------
drivers/fpga/dfl-fme-error.c | 32 ++++++++-------
drivers/fpga/dfl-fme-main.c | 18 ++++++---
drivers/fpga/dfl-fme-pr.c | 6 +--
drivers/fpga/dfl.c | 71 ++++++++++++++-------------------
drivers/fpga/dfl.h | 35 +++++++++--------
9 files changed, 150 insertions(+), 147 deletions(-)
diff --git a/drivers/fpga/dfl-afu-error.c b/drivers/fpga/dfl-afu-error.c
index ab7be6217368..ad6ea19faaa0 100644
--- a/drivers/fpga/dfl-afu-error.c
+++ b/drivers/fpga/dfl-afu-error.c
@@ -28,11 +28,11 @@
#define ERROR_MASK GENMASK_ULL(63, 0)
/* mask or unmask port errors by the error mask register. */
-static void __afu_port_err_mask(struct device *dev, bool mask)
+static void __afu_port_err_mask(struct dfl_feature_platform_data *pdata, bool mask)
{
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_ERROR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_ERROR);
writeq(mask ? ERROR_MASK : 0, base + PORT_ERROR_MASK);
}
@@ -42,7 +42,7 @@ static void afu_port_err_mask(struct device *dev, bool mask)
struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
mutex_lock(&pdata->lock);
- __afu_port_err_mask(dev, mask);
+ __afu_port_err_mask(pdata, mask);
mutex_unlock(&pdata->lock);
}
@@ -50,13 +50,12 @@ static void afu_port_err_mask(struct device *dev, bool mask)
static int afu_port_err_clear(struct device *dev, u64 err)
{
struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
- struct platform_device *pdev = to_platform_device(dev);
void __iomem *base_err, *base_hdr;
int enable_ret = 0, ret = -EBUSY;
u64 v;
- base_err = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_ERROR);
- base_hdr = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base_err = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_ERROR);
+ base_hdr = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
@@ -80,12 +79,12 @@ static int afu_port_err_clear(struct device *dev, u64 err)
}
/* Halt Port by keeping Port in reset */
- ret = __afu_port_disable(pdev);
+ ret = __afu_port_disable(pdata);
if (ret)
goto done;
/* Mask all errors */
- __afu_port_err_mask(dev, true);
+ __afu_port_err_mask(pdata, true);
/* Clear errors if err input matches with current port errors.*/
v = readq(base_err + PORT_ERROR);
@@ -102,10 +101,10 @@ static int afu_port_err_clear(struct device *dev, u64 err)
}
/* Clear mask */
- __afu_port_err_mask(dev, false);
+ __afu_port_err_mask(pdata, false);
/* Enable the Port by clearing the reset */
- enable_ret = __afu_port_enable(pdev);
+ enable_ret = __afu_port_enable(pdata);
done:
mutex_unlock(&pdata->lock);
@@ -119,7 +118,7 @@ static ssize_t errors_show(struct device *dev, struct device_attribute *attr,
void __iomem *base;
u64 error;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_ERROR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_ERROR);
mutex_lock(&pdata->lock);
error = readq(base + PORT_ERROR);
@@ -150,7 +149,7 @@ static ssize_t first_error_show(struct device *dev,
void __iomem *base;
u64 error;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_ERROR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_ERROR);
mutex_lock(&pdata->lock);
error = readq(base + PORT_FIRST_ERROR);
@@ -168,7 +167,7 @@ static ssize_t first_malformed_req_show(struct device *dev,
void __iomem *base;
u64 req0, req1;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_ERROR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_ERROR);
mutex_lock(&pdata->lock);
req0 = readq(base + PORT_MALFORMED_REQ0);
@@ -190,13 +189,15 @@ static struct attribute *port_err_attrs[] = {
static umode_t port_err_attrs_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
+ struct dfl_feature_platform_data *pdata;
struct device *dev = kobj_to_dev(kobj);
+ pdata = dev_get_platdata(dev);
/*
* sysfs entries are visible only if related private feature is
* enumerated.
*/
- if (!dfl_get_feature_by_id(dev, PORT_FEATURE_ID_ERROR))
+ if (!dfl_get_feature_by_id(pdata, PORT_FEATURE_ID_ERROR))
return 0;
return attr->mode;
diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
index c0f2db72b5b9..c86d01f49633 100644
--- a/drivers/fpga/dfl-afu-main.c
+++ b/drivers/fpga/dfl-afu-main.c
@@ -26,7 +26,7 @@
/**
* __afu_port_enable - enable a port by clear reset
- * @pdev: port platform device.
+ * @pdata: feature device platform data
*
* Enable Port by clear the port soft reset bit, which is set by default.
* The AFU is unable to respond to any MMIO access while in reset.
@@ -35,9 +35,8 @@
*
* The caller needs to hold lock for protection.
*/
-int __afu_port_enable(struct platform_device *pdev)
+int __afu_port_enable(struct dfl_feature_platform_data *pdata)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
void __iomem *base;
u64 v;
@@ -46,7 +45,7 @@ int __afu_port_enable(struct platform_device *pdev)
if (--pdata->disable_count != 0)
return 0;
- base = dfl_get_feature_ioaddr_by_id(&pdev->dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
/* Clear port soft reset */
v = readq(base + PORT_HDR_CTRL);
@@ -70,22 +69,21 @@ int __afu_port_enable(struct platform_device *pdev)
/**
* __afu_port_disable - disable a port by hold reset
- * @pdev: port platform device.
+ * @pdata: feature device platform data
*
* Disable Port by setting the port soft reset bit, it puts the port into reset.
*
* The caller needs to hold lock for protection.
*/
-int __afu_port_disable(struct platform_device *pdev)
+int __afu_port_disable(struct dfl_feature_platform_data *pdata)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
void __iomem *base;
u64 v;
if (pdata->disable_count++ != 0)
return 0;
- base = dfl_get_feature_ioaddr_by_id(&pdev->dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
/* Set port soft reset */
v = readq(base + PORT_HDR_CTRL);
@@ -120,15 +118,15 @@ int __afu_port_disable(struct platform_device *pdev)
* (disabled). Any attempts on MMIO access to AFU while in reset, will
* result errors reported via port error reporting sub feature (if present).
*/
-static int __port_reset(struct platform_device *pdev)
+static int __port_reset(struct dfl_feature_platform_data *pdata)
{
int ret;
- ret = __afu_port_disable(pdev);
+ ret = __afu_port_disable(pdata);
if (ret)
return ret;
- return __afu_port_enable(pdev);
+ return __afu_port_enable(pdata);
}
static int port_reset(struct platform_device *pdev)
@@ -137,17 +135,17 @@ static int port_reset(struct platform_device *pdev)
int ret;
mutex_lock(&pdata->lock);
- ret = __port_reset(pdev);
+ ret = __port_reset(pdata);
mutex_unlock(&pdata->lock);
return ret;
}
-static int port_get_id(struct platform_device *pdev)
+static int port_get_id(struct dfl_feature_platform_data *pdata)
{
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(&pdev->dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
return FIELD_GET(PORT_CAP_PORT_NUM, readq(base + PORT_HDR_CAP));
}
@@ -155,7 +153,8 @@ static int port_get_id(struct platform_device *pdev)
static ssize_t
id_show(struct device *dev, struct device_attribute *attr, char *buf)
{
- int id = port_get_id(to_platform_device(dev));
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
+ int id = port_get_id(pdata);
return scnprintf(buf, PAGE_SIZE, "%d\n", id);
}
@@ -168,7 +167,7 @@ ltr_show(struct device *dev, struct device_attribute *attr, char *buf)
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_CTRL);
@@ -189,7 +188,7 @@ ltr_store(struct device *dev, struct device_attribute *attr,
if (kstrtobool(buf, <r))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_CTRL);
@@ -209,7 +208,7 @@ ap1_event_show(struct device *dev, struct device_attribute *attr, char *buf)
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_STS);
@@ -229,7 +228,7 @@ ap1_event_store(struct device *dev, struct device_attribute *attr,
if (kstrtobool(buf, &clear) || !clear)
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
writeq(PORT_STS_AP1_EVT, base + PORT_HDR_STS);
@@ -247,7 +246,7 @@ ap2_event_show(struct device *dev, struct device_attribute *attr,
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_STS);
@@ -267,7 +266,7 @@ ap2_event_store(struct device *dev, struct device_attribute *attr,
if (kstrtobool(buf, &clear) || !clear)
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
writeq(PORT_STS_AP2_EVT, base + PORT_HDR_STS);
@@ -284,7 +283,7 @@ power_state_show(struct device *dev, struct device_attribute *attr, char *buf)
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_STS);
@@ -305,7 +304,7 @@ userclk_freqcmd_store(struct device *dev, struct device_attribute *attr,
if (kstrtou64(buf, 0, &userclk_freq_cmd))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
writeq(userclk_freq_cmd, base + PORT_HDR_USRCLK_CMD0);
@@ -326,7 +325,7 @@ userclk_freqcntrcmd_store(struct device *dev, struct device_attribute *attr,
if (kstrtou64(buf, 0, &userclk_freqcntr_cmd))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
writeq(userclk_freqcntr_cmd, base + PORT_HDR_USRCLK_CMD1);
@@ -344,7 +343,7 @@ userclk_freqsts_show(struct device *dev, struct device_attribute *attr,
u64 userclk_freqsts;
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
userclk_freqsts = readq(base + PORT_HDR_USRCLK_STS0);
@@ -362,7 +361,7 @@ userclk_freqcntrsts_show(struct device *dev, struct device_attribute *attr,
u64 userclk_freqcntrsts;
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
userclk_freqcntrsts = readq(base + PORT_HDR_USRCLK_STS1);
@@ -389,11 +388,13 @@ static struct attribute *port_hdr_attrs[] = {
static umode_t port_hdr_attrs_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
+ struct dfl_feature_platform_data *pdata;
struct device *dev = kobj_to_dev(kobj);
umode_t mode = attr->mode;
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ pdata = dev_get_platdata(dev);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
if (dfl_feature_revision(base) > 0) {
/*
@@ -462,7 +463,7 @@ afu_id_show(struct device *dev, struct device_attribute *attr, char *buf)
void __iomem *base;
u64 guidl, guidh;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_AFU);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_AFU);
mutex_lock(&pdata->lock);
if (pdata->disable_count) {
@@ -486,13 +487,15 @@ static struct attribute *port_afu_attrs[] = {
static umode_t port_afu_attrs_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
+ struct dfl_feature_platform_data *pdata;
struct device *dev = kobj_to_dev(kobj);
+ pdata = dev_get_platdata(dev);
/*
* sysfs entries are visible only if related private feature is
* enumerated.
*/
- if (!dfl_get_feature_by_id(dev, PORT_FEATURE_ID_AFU))
+ if (!dfl_get_feature_by_id(pdata, PORT_FEATURE_ID_AFU))
return 0;
return attr->mode;
@@ -506,9 +509,10 @@ static const struct attribute_group port_afu_group = {
static int port_afu_init(struct platform_device *pdev,
struct dfl_feature *feature)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *res = &pdev->resource[feature->resource_index];
- return afu_mmio_region_add(dev_get_platdata(&pdev->dev),
+ return afu_mmio_region_add(pdata,
DFL_PORT_REGION_INDEX_AFU,
resource_size(res), res->start,
DFL_PORT_REGION_MMAP | DFL_PORT_REGION_READ |
@@ -527,9 +531,10 @@ static const struct dfl_feature_ops port_afu_ops = {
static int port_stp_init(struct platform_device *pdev,
struct dfl_feature *feature)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *res = &pdev->resource[feature->resource_index];
- return afu_mmio_region_add(dev_get_platdata(&pdev->dev),
+ return afu_mmio_region_add(pdata,
DFL_PORT_REGION_INDEX_STP,
resource_size(res), res->start,
DFL_PORT_REGION_MMAP | DFL_PORT_REGION_READ |
@@ -630,7 +635,7 @@ static int afu_release(struct inode *inode, struct file *filp)
dfl_fpga_dev_for_each_feature(pdata, feature)
dfl_fpga_set_irq_triggers(feature, 0,
feature->nr_irqs, NULL);
- __port_reset(pdev);
+ __port_reset(pdata);
afu_dma_region_destroy(pdata);
}
mutex_unlock(&pdata->lock);
@@ -878,16 +883,15 @@ static int afu_dev_destroy(struct platform_device *pdev)
return 0;
}
-static int port_enable_set(struct platform_device *pdev, bool enable)
+static int port_enable_set(struct dfl_feature_platform_data *pdata, bool enable)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
int ret;
mutex_lock(&pdata->lock);
if (enable)
- ret = __afu_port_enable(pdev);
+ ret = __afu_port_enable(pdata);
else
- ret = __afu_port_disable(pdev);
+ ret = __afu_port_disable(pdata);
mutex_unlock(&pdata->lock);
return ret;
diff --git a/drivers/fpga/dfl-afu.h b/drivers/fpga/dfl-afu.h
index 7bef3e300aa2..6d1e79240c70 100644
--- a/drivers/fpga/dfl-afu.h
+++ b/drivers/fpga/dfl-afu.h
@@ -77,8 +77,8 @@ struct dfl_afu {
};
/* hold pdata->lock when call __afu_port_enable/disable */
-int __afu_port_enable(struct platform_device *pdev);
-int __afu_port_disable(struct platform_device *pdev);
+int __afu_port_enable(struct dfl_feature_platform_data *pdata);
+int __afu_port_disable(struct dfl_feature_platform_data *pdata);
void afu_mmio_region_init(struct dfl_feature_platform_data *pdata);
int afu_mmio_region_add(struct dfl_feature_platform_data *pdata,
diff --git a/drivers/fpga/dfl-fme-br.c b/drivers/fpga/dfl-fme-br.c
index 0b01b3895277..c19ddb02a161 100644
--- a/drivers/fpga/dfl-fme-br.c
+++ b/drivers/fpga/dfl-fme-br.c
@@ -22,34 +22,34 @@
struct fme_br_priv {
struct dfl_fme_br_pdata *pdata;
struct dfl_fpga_port_ops *port_ops;
- struct platform_device *port_pdev;
+ struct dfl_feature_platform_data *port_pdata;
};
static int fme_bridge_enable_set(struct fpga_bridge *bridge, bool enable)
{
+ struct dfl_feature_platform_data *port_pdata;
struct fme_br_priv *priv = bridge->priv;
- struct platform_device *port_pdev;
struct dfl_fpga_port_ops *ops;
- if (!priv->port_pdev) {
- port_pdev = dfl_fpga_cdev_find_port(priv->pdata->cdev,
- &priv->pdata->port_id,
- dfl_fpga_check_port_id);
- if (!port_pdev)
+ if (!priv->port_pdata) {
+ port_pdata = dfl_fpga_cdev_find_port_data(priv->pdata->cdev,
+ &priv->pdata->port_id,
+ dfl_fpga_check_port_id);
+ if (!port_pdata)
return -ENODEV;
- priv->port_pdev = port_pdev;
+ priv->port_pdata = port_pdata;
}
- if (priv->port_pdev && !priv->port_ops) {
- ops = dfl_fpga_port_ops_get(priv->port_pdev);
+ if (priv->port_pdata && !priv->port_ops) {
+ ops = dfl_fpga_port_ops_get(priv->port_pdata);
if (!ops || !ops->enable_set)
return -ENOENT;
priv->port_ops = ops;
}
- return priv->port_ops->enable_set(priv->port_pdev, enable);
+ return priv->port_ops->enable_set(priv->port_pdata, enable);
}
static const struct fpga_bridge_ops fme_bridge_ops = {
@@ -85,8 +85,8 @@ static void fme_br_remove(struct platform_device *pdev)
fpga_bridge_unregister(br);
- if (priv->port_pdev)
- put_device(&priv->port_pdev->dev);
+ if (priv->port_pdata)
+ put_device(&priv->port_pdata->dev->dev);
if (priv->port_ops)
dfl_fpga_port_ops_put(priv->port_ops);
}
diff --git a/drivers/fpga/dfl-fme-error.c b/drivers/fpga/dfl-fme-error.c
index 51c2892ec06d..39b8e3b450d7 100644
--- a/drivers/fpga/dfl-fme-error.c
+++ b/drivers/fpga/dfl-fme-error.c
@@ -46,7 +46,7 @@ static ssize_t pcie0_errors_show(struct device *dev,
void __iomem *base;
u64 value;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
value = readq(base + PCIE0_ERROR);
@@ -67,7 +67,7 @@ static ssize_t pcie0_errors_store(struct device *dev,
if (kstrtou64(buf, 0, &val))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
writeq(GENMASK_ULL(63, 0), base + PCIE0_ERROR_MASK);
@@ -91,7 +91,7 @@ static ssize_t pcie1_errors_show(struct device *dev,
void __iomem *base;
u64 value;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
value = readq(base + PCIE1_ERROR);
@@ -112,7 +112,7 @@ static ssize_t pcie1_errors_store(struct device *dev,
if (kstrtou64(buf, 0, &val))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
writeq(GENMASK_ULL(63, 0), base + PCIE1_ERROR_MASK);
@@ -132,9 +132,10 @@ static DEVICE_ATTR_RW(pcie1_errors);
static ssize_t nonfatal_errors_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
return sprintf(buf, "0x%llx\n",
(unsigned long long)readq(base + RAS_NONFAT_ERROR));
@@ -144,9 +145,10 @@ static DEVICE_ATTR_RO(nonfatal_errors);
static ssize_t catfatal_errors_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
return sprintf(buf, "0x%llx\n",
(unsigned long long)readq(base + RAS_CATFAT_ERROR));
@@ -160,7 +162,7 @@ static ssize_t inject_errors_show(struct device *dev,
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
v = readq(base + RAS_ERROR_INJECT);
@@ -185,7 +187,7 @@ static ssize_t inject_errors_store(struct device *dev,
if (inject_error & ~INJECT_ERROR_MASK)
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
v = readq(base + RAS_ERROR_INJECT);
@@ -205,7 +207,7 @@ static ssize_t fme_errors_show(struct device *dev,
void __iomem *base;
u64 value;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
value = readq(base + FME_ERROR);
@@ -226,7 +228,7 @@ static ssize_t fme_errors_store(struct device *dev,
if (kstrtou64(buf, 0, &val))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
writeq(GENMASK_ULL(63, 0), base + FME_ERROR_MASK);
@@ -252,7 +254,7 @@ static ssize_t first_error_show(struct device *dev,
void __iomem *base;
u64 value;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
value = readq(base + FME_FIRST_ERROR);
@@ -269,7 +271,7 @@ static ssize_t next_error_show(struct device *dev,
void __iomem *base;
u64 value;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
value = readq(base + FME_NEXT_ERROR);
@@ -294,13 +296,15 @@ static struct attribute *fme_global_err_attrs[] = {
static umode_t fme_global_err_attrs_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
+ struct dfl_feature_platform_data *pdata;
struct device *dev = kobj_to_dev(kobj);
+ pdata = dev_get_platdata(dev);
/*
* sysfs entries are visible only if related private feature is
* enumerated.
*/
- if (!dfl_get_feature_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR))
+ if (!dfl_get_feature_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR))
return 0;
return attr->mode;
@@ -317,7 +321,7 @@ static void fme_err_mask(struct device *dev, bool mask)
struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_GLOBAL_ERR);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_GLOBAL_ERR);
mutex_lock(&pdata->lock);
diff --git a/drivers/fpga/dfl-fme-main.c b/drivers/fpga/dfl-fme-main.c
index 480a187289bb..4964e15e910b 100644
--- a/drivers/fpga/dfl-fme-main.c
+++ b/drivers/fpga/dfl-fme-main.c
@@ -28,10 +28,11 @@
static ssize_t ports_num_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
v = readq(base + FME_HDR_CAP);
@@ -47,10 +48,11 @@ static DEVICE_ATTR_RO(ports_num);
static ssize_t bitstream_id_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
v = readq(base + FME_HDR_BITSTREAM_ID);
@@ -65,10 +67,11 @@ static DEVICE_ATTR_RO(bitstream_id);
static ssize_t bitstream_metadata_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
v = readq(base + FME_HDR_BITSTREAM_MD);
@@ -79,10 +82,11 @@ static DEVICE_ATTR_RO(bitstream_metadata);
static ssize_t cache_size_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
v = readq(base + FME_HDR_CAP);
@@ -94,10 +98,11 @@ static DEVICE_ATTR_RO(cache_size);
static ssize_t fabric_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
v = readq(base + FME_HDR_CAP);
@@ -109,10 +114,11 @@ static DEVICE_ATTR_RO(fabric_version);
static ssize_t socket_id_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, FME_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
v = readq(base + FME_HDR_CAP);
diff --git a/drivers/fpga/dfl-fme-pr.c b/drivers/fpga/dfl-fme-pr.c
index cdcf6dea4cc9..97fc0e402edf 100644
--- a/drivers/fpga/dfl-fme-pr.c
+++ b/drivers/fpga/dfl-fme-pr.c
@@ -87,8 +87,7 @@ static int fme_pr(struct platform_device *pdev, unsigned long arg)
return -EINVAL;
/* get fme header region */
- fme_hdr = dfl_get_feature_ioaddr_by_id(&pdev->dev,
- FME_FEATURE_ID_HEADER);
+ fme_hdr = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
/* check port id */
v = readq(fme_hdr + FME_HDR_CAP);
@@ -378,8 +377,7 @@ static int pr_mgmt_init(struct platform_device *pdev,
int ret = -ENODEV, i = 0;
u64 fme_cap, port_offset;
- fme_hdr = dfl_get_feature_ioaddr_by_id(&pdev->dev,
- FME_FEATURE_ID_HEADER);
+ fme_hdr = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
priv = dfl_fpga_pdata_get_private(pdata);
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c
index 8512a1da6570..4c79d433d216 100644
--- a/drivers/fpga/dfl.c
+++ b/drivers/fpga/dfl.c
@@ -161,7 +161,7 @@ static LIST_HEAD(dfl_port_ops_list);
*
* Please note that must dfl_fpga_port_ops_put after use the port_ops.
*/
-struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct platform_device *pdev)
+struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct dfl_feature_platform_data *pdata)
{
struct dfl_fpga_port_ops *ops = NULL;
@@ -171,7 +171,7 @@ struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct platform_device *pdev)
list_for_each_entry(ops, &dfl_port_ops_list, node) {
/* match port_ops using the name of platform device */
- if (!strcmp(pdev->name, ops->name)) {
+ if (!strcmp(pdata->dev->name, ops->name)) {
if (!try_module_get(ops->owner))
ops = NULL;
goto done;
@@ -227,19 +227,18 @@ EXPORT_SYMBOL_GPL(dfl_fpga_port_ops_del);
*
* Return: 1 if port device matches with given port id, otherwise 0.
*/
-int dfl_fpga_check_port_id(struct platform_device *pdev, void *pport_id)
+int dfl_fpga_check_port_id(struct dfl_feature_platform_data *pdata, void *pport_id)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct dfl_fpga_port_ops *port_ops;
if (pdata->id != FEATURE_DEV_ID_UNUSED)
return pdata->id == *(int *)pport_id;
- port_ops = dfl_fpga_port_ops_get(pdev);
+ port_ops = dfl_fpga_port_ops_get(pdata);
if (!port_ops || !port_ops->get_id)
return 0;
- pdata->id = port_ops->get_id(pdev);
+ pdata->id = port_ops->get_id(pdata);
dfl_fpga_port_ops_put(port_ops);
return pdata->id == *(int *)pport_id;
@@ -741,11 +740,9 @@ struct dfl_feature_info {
u64 params[];
};
-static void dfl_fpga_cdev_add_port_dev(struct dfl_fpga_cdev *cdev,
- struct platform_device *port)
+static void dfl_fpga_cdev_add_port_data(struct dfl_fpga_cdev *cdev,
+ struct dfl_feature_platform_data *pdata)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(&port->dev);
-
mutex_lock(&cdev->lock);
list_add(&pdata->node, &cdev->port_dev_list);
get_device(&pdata->dev->dev);
@@ -865,8 +862,8 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo)
ret = platform_device_add(binfo->feature_dev);
if (!ret) {
if (type == PORT_ID)
- dfl_fpga_cdev_add_port_dev(binfo->cdev,
- binfo->feature_dev);
+ dfl_fpga_cdev_add_port_data(binfo->cdev,
+ pdata);
else
binfo->cdev->fme_dev =
get_device(&binfo->feature_dev->dev);
@@ -1641,7 +1638,7 @@ void dfl_fpga_feature_devs_remove(struct dfl_fpga_cdev *cdev)
EXPORT_SYMBOL_GPL(dfl_fpga_feature_devs_remove);
/**
- * __dfl_fpga_cdev_find_port - find a port under given container device
+ * __dfl_fpga_cdev_find_port_data - find a port under given container device
*
* @cdev: container device
* @data: data passed to match function
@@ -1654,23 +1651,20 @@ EXPORT_SYMBOL_GPL(dfl_fpga_feature_devs_remove);
*
* NOTE: you will need to drop the device reference with put_device() after use.
*/
-struct platform_device *
-__dfl_fpga_cdev_find_port(struct dfl_fpga_cdev *cdev, void *data,
- int (*match)(struct platform_device *, void *))
+struct dfl_feature_platform_data *
+__dfl_fpga_cdev_find_port_data(struct dfl_fpga_cdev *cdev, void *data,
+ int (*match)(struct dfl_feature_platform_data *, void *))
{
struct dfl_feature_platform_data *pdata;
- struct platform_device *port_dev;
list_for_each_entry(pdata, &cdev->port_dev_list, node) {
- port_dev = pdata->dev;
-
- if (match(port_dev, data) && get_device(&port_dev->dev))
- return port_dev;
+ if (match(pdata, data) && get_device(&pdata->dev->dev))
+ return pdata;
}
return NULL;
}
-EXPORT_SYMBOL_GPL(__dfl_fpga_cdev_find_port);
+EXPORT_SYMBOL_GPL(__dfl_fpga_cdev_find_port_data);
static int __init dfl_fpga_init(void)
{
@@ -1705,32 +1699,29 @@ static int __init dfl_fpga_init(void)
int dfl_fpga_cdev_release_port(struct dfl_fpga_cdev *cdev, int port_id)
{
struct dfl_feature_platform_data *pdata;
- struct platform_device *port_pdev;
int ret = -ENODEV;
mutex_lock(&cdev->lock);
- port_pdev = __dfl_fpga_cdev_find_port(cdev, &port_id,
- dfl_fpga_check_port_id);
- if (!port_pdev)
+ pdata = __dfl_fpga_cdev_find_port_data(cdev, &port_id,
+ dfl_fpga_check_port_id);
+ if (!pdata)
goto unlock_exit;
- if (!device_is_registered(&port_pdev->dev)) {
+ if (!device_is_registered(&pdata->dev->dev)) {
ret = -EBUSY;
goto put_dev_exit;
}
- pdata = dev_get_platdata(&port_pdev->dev);
-
mutex_lock(&pdata->lock);
ret = dfl_feature_dev_use_begin(pdata, true);
mutex_unlock(&pdata->lock);
if (ret)
goto put_dev_exit;
- platform_device_del(port_pdev);
+ platform_device_del(pdata->dev);
cdev->released_port_num++;
put_dev_exit:
- put_device(&port_pdev->dev);
+ put_device(&pdata->dev->dev);
unlock_exit:
mutex_unlock(&cdev->lock);
return ret;
@@ -1751,33 +1742,30 @@ EXPORT_SYMBOL_GPL(dfl_fpga_cdev_release_port);
int dfl_fpga_cdev_assign_port(struct dfl_fpga_cdev *cdev, int port_id)
{
struct dfl_feature_platform_data *pdata;
- struct platform_device *port_pdev;
int ret = -ENODEV;
mutex_lock(&cdev->lock);
- port_pdev = __dfl_fpga_cdev_find_port(cdev, &port_id,
- dfl_fpga_check_port_id);
- if (!port_pdev)
+ pdata = __dfl_fpga_cdev_find_port_data(cdev, &port_id,
+ dfl_fpga_check_port_id);
+ if (!pdata)
goto unlock_exit;
- if (device_is_registered(&port_pdev->dev)) {
+ if (device_is_registered(&pdata->dev->dev)) {
ret = -EBUSY;
goto put_dev_exit;
}
- ret = platform_device_add(port_pdev);
+ ret = platform_device_add(pdata->dev);
if (ret)
goto put_dev_exit;
- pdata = dev_get_platdata(&port_pdev->dev);
-
mutex_lock(&pdata->lock);
dfl_feature_dev_use_end(pdata);
mutex_unlock(&pdata->lock);
cdev->released_port_num--;
put_dev_exit:
- put_device(&port_pdev->dev);
+ put_device(&pdata->dev->dev);
unlock_exit:
mutex_unlock(&cdev->lock);
return ret;
@@ -1787,10 +1775,11 @@ EXPORT_SYMBOL_GPL(dfl_fpga_cdev_assign_port);
static void config_port_access_mode(struct device *fme_dev, int port_id,
bool is_vf)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(fme_dev);
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(fme_dev, FME_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, FME_FEATURE_ID_HEADER);
v = readq(base + FME_HDR_PORT_OFST(port_id));
diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h
index 2285215f444e..8ef9f33e22c1 100644
--- a/drivers/fpga/dfl.h
+++ b/drivers/fpga/dfl.h
@@ -206,6 +206,8 @@
#define PORT_UINT_CAP_INT_NUM GENMASK_ULL(11, 0) /* Interrupts num */
#define PORT_UINT_CAP_FST_VECT GENMASK_ULL(23, 12) /* First Vector */
+struct dfl_feature_platform_data;
+
/**
* struct dfl_fpga_port_ops - port ops
*
@@ -219,15 +221,15 @@ struct dfl_fpga_port_ops {
const char *name;
struct module *owner;
struct list_head node;
- int (*get_id)(struct platform_device *pdev);
- int (*enable_set)(struct platform_device *pdev, bool enable);
+ int (*get_id)(struct dfl_feature_platform_data *pdata);
+ int (*enable_set)(struct dfl_feature_platform_data *pdata, bool enable);
};
void dfl_fpga_port_ops_add(struct dfl_fpga_port_ops *ops);
void dfl_fpga_port_ops_del(struct dfl_fpga_port_ops *ops);
-struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct platform_device *pdev);
+struct dfl_fpga_port_ops *dfl_fpga_port_ops_get(struct dfl_feature_platform_data *pdata);
void dfl_fpga_port_ops_put(struct dfl_fpga_port_ops *ops);
-int dfl_fpga_check_port_id(struct platform_device *pdev, void *pport_id);
+int dfl_fpga_check_port_id(struct dfl_feature_platform_data *pdata, void *pport_id);
/**
* struct dfl_feature_id - dfl private feature id
@@ -413,9 +415,8 @@ dfl_fpga_inode_to_feature_dev_data(struct inode *inode)
(feature) < (pdata)->features + (pdata)->num; (feature)++)
static inline
-struct dfl_feature *dfl_get_feature_by_id(struct device *dev, u16 id)
+struct dfl_feature *dfl_get_feature_by_id(struct dfl_feature_platform_data *pdata, u16 id)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
struct dfl_feature *feature;
dfl_fpga_dev_for_each_feature(pdata, feature)
@@ -426,9 +427,9 @@ struct dfl_feature *dfl_get_feature_by_id(struct device *dev, u16 id)
}
static inline
-void __iomem *dfl_get_feature_ioaddr_by_id(struct device *dev, u16 id)
+void __iomem *dfl_get_feature_ioaddr_by_id(struct dfl_feature_platform_data *pdata, u16 id)
{
- struct dfl_feature *feature = dfl_get_feature_by_id(dev, id);
+ struct dfl_feature *feature = dfl_get_feature_by_id(pdata, id);
if (feature && feature->ioaddr)
return feature->ioaddr;
@@ -527,21 +528,21 @@ void dfl_fpga_feature_devs_remove(struct dfl_fpga_cdev *cdev);
* device returned by __dfl_fpga_cdev_find_port and dfl_fpga_cdev_find_port
* functions.
*/
-struct platform_device *
-__dfl_fpga_cdev_find_port(struct dfl_fpga_cdev *cdev, void *data,
- int (*match)(struct platform_device *, void *));
+struct dfl_feature_platform_data *
+__dfl_fpga_cdev_find_port_data(struct dfl_fpga_cdev *cdev, void *data,
+ int (*match)(struct dfl_feature_platform_data *, void *));
-static inline struct platform_device *
-dfl_fpga_cdev_find_port(struct dfl_fpga_cdev *cdev, void *data,
- int (*match)(struct platform_device *, void *))
+static inline struct dfl_feature_platform_data *
+dfl_fpga_cdev_find_port_data(struct dfl_fpga_cdev *cdev, void *data,
+ int (*match)(struct dfl_feature_platform_data *, void *))
{
- struct platform_device *pdev;
+ struct dfl_feature_platform_data *pdata;
mutex_lock(&cdev->lock);
- pdev = __dfl_fpga_cdev_find_port(cdev, data, match);
+ pdata = __dfl_fpga_cdev_find_port_data(cdev, data, match);
mutex_unlock(&cdev->lock);
- return pdev;
+ return pdata;
}
int dfl_fpga_cdev_release_port(struct dfl_fpga_cdev *cdev, int port_id);
--
2.47.0
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